87 lines
3.2 KiB
Markdown
87 lines
3.2 KiB
Markdown
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# nsfwbot for Matrix
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`nsfwbot` is a Matrix bot plugin that detects NSFW (Not Safe For Work) images posted in Matrix chat rooms. It uses [nudenet](https://github.com/notAI-tech/NudeNet), which includes a deep learning model that efficiently runs without requiring a GPU, with low resource demands.
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## Features
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- **Image Analysis**: Detects and analyzes images posted in Matrix chats using NudeNet.
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- **Redaction of Spammed Images**: Automatically redacts images when users send more than the allowed number within a short time frame.
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- **Text Message Parsing**: Analyzes images embedded in text messages.
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- **Custom Actions**: Configurable actions for detected content, including reporting and redacting messages.
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## Requirements
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- **Maubot**: Runs within the Maubot framework.
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- **Python Dependencies**: `nudenet`, `beautifulsoup4`, and `maubot`.
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To install the dependencies, you can find them listed in the `requirements.txt`:
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```plaintext
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beautifulsoup4
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nsfwdetection
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maubot
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```
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## Installation
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1. **Use the Custom Maubot Docker Image**:
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Replace the official Maubot image with a custom Debian-based image:
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```bash
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docker pull ghcr.io/tcpipuk/maubot:debian
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```
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2. a. **Install pre-prepared plugin from [repository releases](https://git.buechner.me/nbuechner/matrix-nsfwbot/releases)**
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b. **Clone the Repository**:
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```bash
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git clone https://git.buechner.me/nbuechner/matrix-nsfwbot
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```
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Zip the plugin files and upload through the Maubot admin interface. Ensure the plugin is configured and enabled.
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3. **Configure the Plugin**:
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Edit `base-config.yaml` to set:
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- `max_concurrent_jobs`: Number of concurrent jobs to allow.
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- `via_servers`: List of servers for `matrix.to` URLs.
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- `actions`:
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- `ignore_sfw`: Ignore SFW images (default: `true`).
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- `redact_nsfw`: Redact NSFW messages (default: `true`).
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- `direct_reply`: Reply directly in the same room (default: `false`).
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- `report_to_room`: Room ID for reporting (optional).
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- `max_images`: The maximum number of images a user can send within a certain time window (default: `3`).
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- `time_window`: The time window (in seconds) in which the image count is tracked (default: `60` seconds).
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> **Note** `report_to_room` can be a room alias (like `#room:server`), but it is more efficient to use a room ID (`!room:server`).
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## Usage
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Once installed and configured, `nsfwbot` will automatically analyze images posted in the chat and:
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- Classify images as NSFW or SFW.
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- Redact images if a user exceeds the configured spam limit (`max_images`).
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- Optionally report detected NSFW content to a configured room.
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Example output:
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```markdown
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mxc://matrix.org/abcd1234 in https://matrix.to/#/!roomid:matrix.org/$eventid?via=matrix.org appears NSFW with score 87.93%
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```
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If multiple images are detected in a text message:
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```markdown
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- mxc://matrix.org/abcd1234 in https://matrix.to/#/!roomid:matrix.org/$eventid?via=matrix.org appears SFW with score 2.45%
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- mxc://matrix.org/efgh5678 in https://matrix.to/#/!roomid:matrix.org/$eventid?via=matrix.org appears NSFW with score 94.82%
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```
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If a user sends too many images:
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```markdown
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User @example:matrix.org has exceeded the image limit. Previous images redacted.
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```
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